[Elecraft] [K3] K3 Rev C DSP with Low Freq Enhancement

[Juan EA5RS]

Wished I had a set of ears like yours.
12 KHz alias signals measure 65 dB down from CW beat note in my K3
while 3rd harmonic is 55 dB down.

73
Juan EA5RS




Mike Scott-7 wrote:
> 
> I have installed the beta version of the Low Pass filter board. It turned
> my
> K3 into a whole different radio. I had been experiencing audio fatigue to
> the point I just stopped using the K3 for CW. I know Paul says the audio
> is
> one of the best designed audio circuits for a communications receiver. I
> say
> it is now but not before. I may have had a singular issue with my K3 or I
> have a singular set of ears.
> 
> Mike Scott - AE6WA
> Tarzana, CA (DM04 / near LA)
> NAQCC 3535
> K3-100 #508 / KX1  #1311
> 
>> Unfortunately, the issue with the 12 kHz leakage (DAC clock?) and beat
>> notes (+/- CW sidetone around 12 kHz) make for some awful audio in CW.
>> I guess most folks don't hear it, but given previous reports from
>> others, it is an issue.  I can't comfortably use the K3 for CW unless
>> using outboard low-pass audio filters to knock the high end garbage  
>> down
>> to an in-audible level.
>>
>> 73
>> Eric NO3M
> 
> 

-- 
View this message in context: http://n2.nabble.com/K3-Rev-C-DSP-with-Low-Freq-Enhancement-ship-date-info-New-swap-out-option-on-parts-order-page-tp3789876p3832365.html
Sent from the [K3] mailing list archive at Nabble.com.